Search
Now showing items 1-10 of 51
Asynoptic Sampling Considerations for Wide-Field-of-View Measurements of Outgoing Radiation. Part II: Diurnal and Random Space-Time Variability
Publisher: American Meteorological Society
Abstract: Two classes of tropical cloud variability: (i) random small-scale fluctuations and (ii) diurnal variations, are investigated with regard to deriving fields of emitted radiation from wide-field-of-view (WFOV) measurements ...
Asynoptic Sampling Considerations for Wide-Field-of-View Measurements of Outgoing Radiation. Part I: Spatial and Temporal Resolution
Publisher: American Meteorological Society
Abstract: A detailed analysis is made of the spatial and temporal information content of wide-field-of-view (WFOV) measurements of outgoing radiation. Specifically, the spatial resolution of WFOV measurements, commensurate with ...
The Influence of Planetary-Wave Transience on Horizontal Air Motions in the Stratosphere
Publisher: American Meteorological Society
Abstract: The influence of large-scale transience on horizontal air motions and tracer distributions in the stratosphere is explored in equivalent barotropic calculations. Planetary waves are excited by steady and unsteady components ...
Rossby Normal Modes in Nonuniform Background Configurations. Part I: Simple Fields
Publisher: American Meteorological Society
Abstract: The influence of mean field variations on the realization of planetary normal modes is investigated by examining the mode response and structure in the presence of simple background nonuniformities. Gradients in the mean ...
Rossby Normal Modes in Nonuniform Background Configurations. Part II. Equinox and Solstice Conditions
Publisher: American Meteorological Society
Abstract: The existence of planetary normal modes in the presence of realistic mean fields is examined. For sufficiently large wavenumber m, or meridional index n, the response of the Rossby modes is diffused beyond identification. ...
Global-Scale Disturbances and Dynamic Similarity
Publisher: American Meteorological Society
Abstract: Terms in the linearized primitive equations for a generally baroclinic atmosphere are evaluated for their significance in maintaining balance for global-scale disturbances. For gravity waves, the linearized advection term ...
The Influence of Realistic Dissipation on Planetary Normal Structures
Publisher: American Meteorological Society
Abstract: The effect of realistic dissipation on the rotational normal modes of a barotropic atmosphere is investigated. Vertical growth of amplitude of the Lamb(10km equivalent depth)modes is found to diminish with increasing ...
A Ubiquitous Wavenumber-5 Anomaly in the Southern Hemisphere During FGGE
Publisher: American Meteorological Society
Abstract: Predominant wavenumber-5 patterns frequent the temperature fields of the lower stratosphere of the Southern Hemisphere during the summer months of FGGE. These pentagonal features, of broad latitudinal extent, appear to ...
Sampling Theory for Asynoptic Satellite Observations. Part I: Space-Time Spectra, Resolution, and Aliasing
Publisher: American Meteorological Society
Abstract: The information content of asynoptic satellite data is evaluated for nadir sonde and limb scan observations. Orbital sampling patterns are shown to uniquely determine the space-time spectrum, within well-defined sampling ...
Sampling Theory for Asynoptic Satellite Observations. Part II: Fast Fourier Synoptic Mapping
Publisher: American Meteorological Society
Abstract: A one to one correspondence between alias-free asynoptic data and twice-daily synoptic maps is established in the Synoptic Retrieval Theorem. The uniqueness follows from an extension of the Sampling Theorem. A Fast Fourier ...